Regular Seminar Mukund Rangamani (Durham )
CFTs at large central charge display some universal features which can be inferred from holography. Using these as a guide one can obtain some necessary conditions for a given CFT to admit a classical gravity dual. I will describe attempts to construct a large class of CFTs satisfying these conditions exploiting some technology of permutation orbifolds. Time permitting I will also outline some tests for the sufficiency of these conditions.